docs: def ident():
      """
      This routine returns the 3x3 identity matrix.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/ident_c.html
  
      :return: The 3x3 identity matrix.
      :rtype: 3x3-Element Array of floats
      """
      matrix = stypes.emptyDoubleMatrix()
      libspice.ident_c(matrix)
      return stypes.cMatrixToNumpy(matrix)